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Robert B. Katz

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Publications by Robert B. Katz (bibliography)

1992

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Fusco, Marc E. and Katz, Robert B. (1992): Catch a Rising Tone: Selecting a Tone for a New Calling Service. In: Proceedings of the Human Factors Society 36th Annual Meeting 1992. pp. 227-231.

“The tone used in the new service Caller ID on Call Waiting (CIDCW) must be reliably detected by customer premises equipment (CPE), so that it can prepare to receive caller ID data, and it should alert customers to new calls but without being annoying. To help select a tone, the first experiment of this study examined the acceptability of a series of high-frequency dual tones that might be able to perform the required CPE signaling. Subjects were presented with the tones under circumstances in which they would typically be heard (while talking and listening over the telephone) and rated the sound quality of the tones. Long bursts of tones were presented as well as short bursts prepended or appended to the 440-Hz tone used in Call Waiting service. The results suggested that customers may find high-frequency dual tones acceptable. To determine acceptable parameters of tones, in the second experiment, subjects rated the loudness of selected tones as their length and power were varied.”

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